Zhìwù and Pípí encounter a sandstorm during their flight and are forced to make an emergency landing in an unfamiliar city. Little did they know, the sandstorm was just the beginning, as a terrifying smog soon envelops the entire city. Now, Dr. Chen's new invention is humanity's only hope for salvation! Can Zhìwù and his companions successfully escape the dangers of air pollution?

智悟和皮皮在飞行途中遇上了沙尘暴，飞机被迫降落在某座陌生的城市。原来沙尘暴只是一个开端，恐怖的烟雾随后笼罩了整座城市……如今，尘博士的新发明是拯救人类的唯一希望！智悟一行人能否成功逃离空气污染的危害？